Format, un-minify, and clean up JavaScript code into structured, human-readable code.
Format and un-minify minified JS code into readable structures
function calculateTotal(items,taxRate) {
let total=0;
for(let i=0;
i<items.length;
i++) {
total+=items[i].price;
}
if(taxRate>0) {
total+=total*taxRate;
}
return total.toFixed(2);
}
console.log(calculateTotal([ {
price:10
}, {
price:20
}
],0.08));A fast client-side JavaScript code beautifier. Convert unformatted or minified JavaScript blocks into clean, structured code with configurable indentation spacing.
Paste your raw or minified JavaScript code into the left editor pane.
Select your preferred tab indentation size (2 or 4 spaces).
View the formatted code instantly in the right editor pane.
Click 'Copy Output' to grab the beautified code to your clipboard.
Formats un-minified JS blocks into properly indented code structures
Configurable indentation depth (2 or 4 spaces)
Live byte and line count indicators
Browser-based execution — your code stays in your browser
JavaScript Beautifier & Formatter transforms, validates or analyzes the data you provide according to the operation described on this page. The output should be reviewed before it is used in production code or security-sensitive workflows.
Generated or transformed output should be reviewed before deployment. Do not paste secrets, private keys, passwords or other sensitive credentials into a tool unless its privacy behavior explicitly supports that use.
This tool is designed to perform its main calculation or transformation in your browser. Do not enter information that the tool does not need, and review the site's Privacy Policy for analytics, advertising and third-party services.
Answers about how the tool works, its limitations, and how your information is handled.
JS beautification restructures minified or single-line JavaScript into multi-line readable code with standardized indentation and spacing.
No. Beautification only alters structural whitespace, indentation, and newlines without modifying variables, functions, or execution logic.
No. All parsing and formatting occur strictly inside your local web browser.
This tool is designed to perform its main calculation or transformation in your browser. Do not enter information that the tool does not need, and review the site's Privacy Policy for analytics, advertising and third-party services.
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